680566611 has 8 divisors (see below), whose sum is σ = 907676560. Its totient is φ = 453583872.

The previous prime is 680566609. The next prime is 680566651. The reversal of 680566611 is 116665086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 680566611 - 2¹ = 680566609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 680566611.

It is not an unprimeable number, because it can be changed into a prime (680566651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18526 + ... + 41283.

It is an arithmetic number, because the mean of its divisors is an integer number (113459570).

Almost surely, 2^680566611 is an apocalyptic number.

680566611 is a deficient number, since it is larger than the sum of its proper divisors (227109949).

680566611 is a wasteful number, since it uses less digits than its factorization.

680566611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63605.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 680566611 is about 26087.6716285682. The cubic root of 680566611 is about 879.6101109434.

The spelling of 680566611 in words is "six hundred eighty million, five hundred sixty-six thousand, six hundred eleven".